Sirach 21:26-28

Revised Standard Version

²⁶ The mind of fools is in their mouth,
    but the mouth of wise men is in^[a] their mind.
²⁷ When an ungodly man curses his adversary,^[b]
    he curses his own soul.
²⁸ A whisperer defiles his own soul
    and is hated in his neighborhood.